2. Find the values of x, y, and z. The diagram is not to scale.

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95

Write an eqautoin of the line that passes through the give points -3,-2 and 2,-1

Module 2 homework: descriptive statistics 40206 module 2: homework 56 randomly selected students were asked how many siblings were in their family. let x represent the number of pairs of siblings in the student's family. the results are as follows: # of siblings 1 2. 4 10 frequency 13 6 10 10 round all yeur answers to 4 decimal places where possible. the mean is: the median is the sample standard deviation is the first quartile is the third quartile is: what percent of the respondents have at least 3 siblings? % 83% of all respondents have fewer than how many siblings?